1 /* 2 * Copyright © 2008 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 * Authors: 24 * Eric Anholt <eric@anholt.net> 25 * Keith Packard <keithp@keithp.com> 26 * 27 */ 28 29 #include <linux/seq_file.h> 30 #include <linux/debugfs.h> 31 #include <linux/slab.h> 32 #include "drmP.h" 33 #include "drm.h" 34 #include "intel_drv.h" 35 #include "i915_drm.h" 36 #include "i915_drv.h" 37 38 #define DRM_I915_RING_DEBUG 1 39 40 41 #if defined(CONFIG_DEBUG_FS) 42 43 enum { 44 ACTIVE_LIST, 45 FLUSHING_LIST, 46 INACTIVE_LIST, 47 PINNED_LIST, 48 DEFERRED_FREE_LIST, 49 }; 50 51 static const char *yesno(int v) 52 { 53 return v ? "yes" : "no"; 54 } 55 56 static int i915_capabilities(struct seq_file *m, void *data) 57 { 58 struct drm_info_node *node = (struct drm_info_node *) m->private; 59 struct drm_device *dev = node->minor->dev; 60 const struct intel_device_info *info = INTEL_INFO(dev); 61 62 seq_printf(m, "gen: %d\n", info->gen); 63 #define B(x) seq_printf(m, #x ": %s\n", yesno(info->x)) 64 B(is_mobile); 65 B(is_i85x); 66 B(is_i915g); 67 B(is_i945gm); 68 B(is_g33); 69 B(need_gfx_hws); 70 B(is_g4x); 71 B(is_pineview); 72 B(is_broadwater); 73 B(is_crestline); 74 B(has_fbc); 75 B(has_rc6); 76 B(has_pipe_cxsr); 77 B(has_hotplug); 78 B(cursor_needs_physical); 79 B(has_overlay); 80 B(overlay_needs_physical); 81 B(supports_tv); 82 B(has_bsd_ring); 83 B(has_blt_ring); 84 #undef B 85 86 return 0; 87 } 88 89 static const char *get_pin_flag(struct drm_i915_gem_object *obj_priv) 90 { 91 if (obj_priv->user_pin_count > 0) 92 return "P"; 93 else if (obj_priv->pin_count > 0) 94 return "p"; 95 else 96 return " "; 97 } 98 99 static const char *get_tiling_flag(struct drm_i915_gem_object *obj_priv) 100 { 101 switch (obj_priv->tiling_mode) { 102 default: 103 case I915_TILING_NONE: return " "; 104 case I915_TILING_X: return "X"; 105 case I915_TILING_Y: return "Y"; 106 } 107 } 108 109 static void 110 describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) 111 { 112 seq_printf(m, "%p: %s%s %8zd %08x %08x %d%s%s", 113 &obj->base, 114 get_pin_flag(obj), 115 get_tiling_flag(obj), 116 obj->base.size, 117 obj->base.read_domains, 118 obj->base.write_domain, 119 obj->last_rendering_seqno, 120 obj->dirty ? " dirty" : "", 121 obj->madv == I915_MADV_DONTNEED ? " purgeable" : ""); 122 if (obj->base.name) 123 seq_printf(m, " (name: %d)", obj->base.name); 124 if (obj->fence_reg != I915_FENCE_REG_NONE) 125 seq_printf(m, " (fence: %d)", obj->fence_reg); 126 if (obj->gtt_space != NULL) 127 seq_printf(m, " (gtt_offset: %08x)", obj->gtt_offset); 128 if (obj->ring != NULL) 129 seq_printf(m, " (%s)", obj->ring->name); 130 } 131 132 static int i915_gem_object_list_info(struct seq_file *m, void *data) 133 { 134 struct drm_info_node *node = (struct drm_info_node *) m->private; 135 uintptr_t list = (uintptr_t) node->info_ent->data; 136 struct list_head *head; 137 struct drm_device *dev = node->minor->dev; 138 drm_i915_private_t *dev_priv = dev->dev_private; 139 struct drm_i915_gem_object *obj_priv; 140 size_t total_obj_size, total_gtt_size; 141 int count, ret; 142 143 ret = mutex_lock_interruptible(&dev->struct_mutex); 144 if (ret) 145 return ret; 146 147 switch (list) { 148 case ACTIVE_LIST: 149 seq_printf(m, "Active:\n"); 150 head = &dev_priv->mm.active_list; 151 break; 152 case INACTIVE_LIST: 153 seq_printf(m, "Inactive:\n"); 154 head = &dev_priv->mm.inactive_list; 155 break; 156 case PINNED_LIST: 157 seq_printf(m, "Pinned:\n"); 158 head = &dev_priv->mm.pinned_list; 159 break; 160 case FLUSHING_LIST: 161 seq_printf(m, "Flushing:\n"); 162 head = &dev_priv->mm.flushing_list; 163 break; 164 case DEFERRED_FREE_LIST: 165 seq_printf(m, "Deferred free:\n"); 166 head = &dev_priv->mm.deferred_free_list; 167 break; 168 default: 169 mutex_unlock(&dev->struct_mutex); 170 return -EINVAL; 171 } 172 173 total_obj_size = total_gtt_size = count = 0; 174 list_for_each_entry(obj_priv, head, mm_list) { 175 seq_printf(m, " "); 176 describe_obj(m, obj_priv); 177 seq_printf(m, "\n"); 178 total_obj_size += obj_priv->base.size; 179 total_gtt_size += obj_priv->gtt_space->size; 180 count++; 181 } 182 mutex_unlock(&dev->struct_mutex); 183 184 seq_printf(m, "Total %d objects, %zu bytes, %zu GTT size\n", 185 count, total_obj_size, total_gtt_size); 186 return 0; 187 } 188 189 static int i915_gem_object_info(struct seq_file *m, void* data) 190 { 191 struct drm_info_node *node = (struct drm_info_node *) m->private; 192 struct drm_device *dev = node->minor->dev; 193 struct drm_i915_private *dev_priv = dev->dev_private; 194 int ret; 195 196 ret = mutex_lock_interruptible(&dev->struct_mutex); 197 if (ret) 198 return ret; 199 200 seq_printf(m, "%u objects\n", dev_priv->mm.object_count); 201 seq_printf(m, "%zu object bytes\n", dev_priv->mm.object_memory); 202 seq_printf(m, "%u pinned\n", dev_priv->mm.pin_count); 203 seq_printf(m, "%zu pin bytes\n", dev_priv->mm.pin_memory); 204 seq_printf(m, "%u objects in gtt\n", dev_priv->mm.gtt_count); 205 seq_printf(m, "%zu gtt bytes\n", dev_priv->mm.gtt_memory); 206 seq_printf(m, "%zu gtt total\n", dev_priv->mm.gtt_total); 207 208 mutex_unlock(&dev->struct_mutex); 209 210 return 0; 211 } 212 213 214 static int i915_gem_pageflip_info(struct seq_file *m, void *data) 215 { 216 struct drm_info_node *node = (struct drm_info_node *) m->private; 217 struct drm_device *dev = node->minor->dev; 218 unsigned long flags; 219 struct intel_crtc *crtc; 220 221 list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) { 222 const char *pipe = crtc->pipe ? "B" : "A"; 223 const char *plane = crtc->plane ? "B" : "A"; 224 struct intel_unpin_work *work; 225 226 spin_lock_irqsave(&dev->event_lock, flags); 227 work = crtc->unpin_work; 228 if (work == NULL) { 229 seq_printf(m, "No flip due on pipe %s (plane %s)\n", 230 pipe, plane); 231 } else { 232 if (!work->pending) { 233 seq_printf(m, "Flip queued on pipe %s (plane %s)\n", 234 pipe, plane); 235 } else { 236 seq_printf(m, "Flip pending (waiting for vsync) on pipe %s (plane %s)\n", 237 pipe, plane); 238 } 239 if (work->enable_stall_check) 240 seq_printf(m, "Stall check enabled, "); 241 else 242 seq_printf(m, "Stall check waiting for page flip ioctl, "); 243 seq_printf(m, "%d prepares\n", work->pending); 244 245 if (work->old_fb_obj) { 246 struct drm_i915_gem_object *obj_priv = to_intel_bo(work->old_fb_obj); 247 if(obj_priv) 248 seq_printf(m, "Old framebuffer gtt_offset 0x%08x\n", obj_priv->gtt_offset ); 249 } 250 if (work->pending_flip_obj) { 251 struct drm_i915_gem_object *obj_priv = to_intel_bo(work->pending_flip_obj); 252 if(obj_priv) 253 seq_printf(m, "New framebuffer gtt_offset 0x%08x\n", obj_priv->gtt_offset ); 254 } 255 } 256 spin_unlock_irqrestore(&dev->event_lock, flags); 257 } 258 259 return 0; 260 } 261 262 static int i915_gem_request_info(struct seq_file *m, void *data) 263 { 264 struct drm_info_node *node = (struct drm_info_node *) m->private; 265 struct drm_device *dev = node->minor->dev; 266 drm_i915_private_t *dev_priv = dev->dev_private; 267 struct drm_i915_gem_request *gem_request; 268 int ret; 269 270 ret = mutex_lock_interruptible(&dev->struct_mutex); 271 if (ret) 272 return ret; 273 274 seq_printf(m, "Request:\n"); 275 list_for_each_entry(gem_request, &dev_priv->render_ring.request_list, 276 list) { 277 seq_printf(m, " %d @ %d\n", 278 gem_request->seqno, 279 (int) (jiffies - gem_request->emitted_jiffies)); 280 } 281 mutex_unlock(&dev->struct_mutex); 282 283 return 0; 284 } 285 286 static int i915_gem_seqno_info(struct seq_file *m, void *data) 287 { 288 struct drm_info_node *node = (struct drm_info_node *) m->private; 289 struct drm_device *dev = node->minor->dev; 290 drm_i915_private_t *dev_priv = dev->dev_private; 291 int ret; 292 293 ret = mutex_lock_interruptible(&dev->struct_mutex); 294 if (ret) 295 return ret; 296 297 if (dev_priv->render_ring.status_page.page_addr != NULL) { 298 seq_printf(m, "Current sequence: %d\n", 299 dev_priv->render_ring.get_seqno(dev, &dev_priv->render_ring)); 300 } else { 301 seq_printf(m, "Current sequence: hws uninitialized\n"); 302 } 303 seq_printf(m, "Waiter sequence: %d\n", 304 dev_priv->mm.waiting_gem_seqno); 305 seq_printf(m, "IRQ sequence: %d\n", dev_priv->mm.irq_gem_seqno); 306 307 mutex_unlock(&dev->struct_mutex); 308 309 return 0; 310 } 311 312 313 static int i915_interrupt_info(struct seq_file *m, void *data) 314 { 315 struct drm_info_node *node = (struct drm_info_node *) m->private; 316 struct drm_device *dev = node->minor->dev; 317 drm_i915_private_t *dev_priv = dev->dev_private; 318 int ret; 319 320 ret = mutex_lock_interruptible(&dev->struct_mutex); 321 if (ret) 322 return ret; 323 324 if (!HAS_PCH_SPLIT(dev)) { 325 seq_printf(m, "Interrupt enable: %08x\n", 326 I915_READ(IER)); 327 seq_printf(m, "Interrupt identity: %08x\n", 328 I915_READ(IIR)); 329 seq_printf(m, "Interrupt mask: %08x\n", 330 I915_READ(IMR)); 331 seq_printf(m, "Pipe A stat: %08x\n", 332 I915_READ(PIPEASTAT)); 333 seq_printf(m, "Pipe B stat: %08x\n", 334 I915_READ(PIPEBSTAT)); 335 } else { 336 seq_printf(m, "North Display Interrupt enable: %08x\n", 337 I915_READ(DEIER)); 338 seq_printf(m, "North Display Interrupt identity: %08x\n", 339 I915_READ(DEIIR)); 340 seq_printf(m, "North Display Interrupt mask: %08x\n", 341 I915_READ(DEIMR)); 342 seq_printf(m, "South Display Interrupt enable: %08x\n", 343 I915_READ(SDEIER)); 344 seq_printf(m, "South Display Interrupt identity: %08x\n", 345 I915_READ(SDEIIR)); 346 seq_printf(m, "South Display Interrupt mask: %08x\n", 347 I915_READ(SDEIMR)); 348 seq_printf(m, "Graphics Interrupt enable: %08x\n", 349 I915_READ(GTIER)); 350 seq_printf(m, "Graphics Interrupt identity: %08x\n", 351 I915_READ(GTIIR)); 352 seq_printf(m, "Graphics Interrupt mask: %08x\n", 353 I915_READ(GTIMR)); 354 } 355 seq_printf(m, "Interrupts received: %d\n", 356 atomic_read(&dev_priv->irq_received)); 357 if (dev_priv->render_ring.status_page.page_addr != NULL) { 358 seq_printf(m, "Current sequence: %d\n", 359 dev_priv->render_ring.get_seqno(dev, &dev_priv->render_ring)); 360 } else { 361 seq_printf(m, "Current sequence: hws uninitialized\n"); 362 } 363 seq_printf(m, "Waiter sequence: %d\n", 364 dev_priv->mm.waiting_gem_seqno); 365 seq_printf(m, "IRQ sequence: %d\n", 366 dev_priv->mm.irq_gem_seqno); 367 mutex_unlock(&dev->struct_mutex); 368 369 return 0; 370 } 371 372 static int i915_gem_fence_regs_info(struct seq_file *m, void *data) 373 { 374 struct drm_info_node *node = (struct drm_info_node *) m->private; 375 struct drm_device *dev = node->minor->dev; 376 drm_i915_private_t *dev_priv = dev->dev_private; 377 int i, ret; 378 379 ret = mutex_lock_interruptible(&dev->struct_mutex); 380 if (ret) 381 return ret; 382 383 seq_printf(m, "Reserved fences = %d\n", dev_priv->fence_reg_start); 384 seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs); 385 for (i = 0; i < dev_priv->num_fence_regs; i++) { 386 struct drm_gem_object *obj = dev_priv->fence_regs[i].obj; 387 388 if (obj == NULL) { 389 seq_printf(m, "Fenced object[%2d] = unused\n", i); 390 } else { 391 struct drm_i915_gem_object *obj_priv; 392 393 obj_priv = to_intel_bo(obj); 394 seq_printf(m, "Fenced object[%2d] = %p: %s " 395 "%08x %08zx %08x %s %08x %08x %d", 396 i, obj, get_pin_flag(obj_priv), 397 obj_priv->gtt_offset, 398 obj->size, obj_priv->stride, 399 get_tiling_flag(obj_priv), 400 obj->read_domains, obj->write_domain, 401 obj_priv->last_rendering_seqno); 402 if (obj->name) 403 seq_printf(m, " (name: %d)", obj->name); 404 seq_printf(m, "\n"); 405 } 406 } 407 mutex_unlock(&dev->struct_mutex); 408 409 return 0; 410 } 411 412 static int i915_hws_info(struct seq_file *m, void *data) 413 { 414 struct drm_info_node *node = (struct drm_info_node *) m->private; 415 struct drm_device *dev = node->minor->dev; 416 drm_i915_private_t *dev_priv = dev->dev_private; 417 int i; 418 volatile u32 *hws; 419 420 hws = (volatile u32 *)dev_priv->render_ring.status_page.page_addr; 421 if (hws == NULL) 422 return 0; 423 424 for (i = 0; i < 4096 / sizeof(u32) / 4; i += 4) { 425 seq_printf(m, "0x%08x: 0x%08x 0x%08x 0x%08x 0x%08x\n", 426 i * 4, 427 hws[i], hws[i + 1], hws[i + 2], hws[i + 3]); 428 } 429 return 0; 430 } 431 432 static void i915_dump_object(struct seq_file *m, 433 struct io_mapping *mapping, 434 struct drm_i915_gem_object *obj_priv) 435 { 436 int page, page_count, i; 437 438 page_count = obj_priv->base.size / PAGE_SIZE; 439 for (page = 0; page < page_count; page++) { 440 u32 *mem = io_mapping_map_wc(mapping, 441 obj_priv->gtt_offset + page * PAGE_SIZE); 442 for (i = 0; i < PAGE_SIZE; i += 4) 443 seq_printf(m, "%08x : %08x\n", i, mem[i / 4]); 444 io_mapping_unmap(mem); 445 } 446 } 447 448 static int i915_batchbuffer_info(struct seq_file *m, void *data) 449 { 450 struct drm_info_node *node = (struct drm_info_node *) m->private; 451 struct drm_device *dev = node->minor->dev; 452 drm_i915_private_t *dev_priv = dev->dev_private; 453 struct drm_gem_object *obj; 454 struct drm_i915_gem_object *obj_priv; 455 int ret; 456 457 ret = mutex_lock_interruptible(&dev->struct_mutex); 458 if (ret) 459 return ret; 460 461 list_for_each_entry(obj_priv, &dev_priv->mm.active_list, mm_list) { 462 obj = &obj_priv->base; 463 if (obj->read_domains & I915_GEM_DOMAIN_COMMAND) { 464 seq_printf(m, "--- gtt_offset = 0x%08x\n", 465 obj_priv->gtt_offset); 466 i915_dump_object(m, dev_priv->mm.gtt_mapping, obj_priv); 467 } 468 } 469 470 mutex_unlock(&dev->struct_mutex); 471 472 return 0; 473 } 474 475 static int i915_ringbuffer_data(struct seq_file *m, void *data) 476 { 477 struct drm_info_node *node = (struct drm_info_node *) m->private; 478 struct drm_device *dev = node->minor->dev; 479 drm_i915_private_t *dev_priv = dev->dev_private; 480 int ret; 481 482 ret = mutex_lock_interruptible(&dev->struct_mutex); 483 if (ret) 484 return ret; 485 486 if (!dev_priv->render_ring.gem_object) { 487 seq_printf(m, "No ringbuffer setup\n"); 488 } else { 489 u8 *virt = dev_priv->render_ring.virtual_start; 490 uint32_t off; 491 492 for (off = 0; off < dev_priv->render_ring.size; off += 4) { 493 uint32_t *ptr = (uint32_t *)(virt + off); 494 seq_printf(m, "%08x : %08x\n", off, *ptr); 495 } 496 } 497 mutex_unlock(&dev->struct_mutex); 498 499 return 0; 500 } 501 502 static int i915_ringbuffer_info(struct seq_file *m, void *data) 503 { 504 struct drm_info_node *node = (struct drm_info_node *) m->private; 505 struct drm_device *dev = node->minor->dev; 506 drm_i915_private_t *dev_priv = dev->dev_private; 507 unsigned int head, tail; 508 509 head = I915_READ(PRB0_HEAD) & HEAD_ADDR; 510 tail = I915_READ(PRB0_TAIL) & TAIL_ADDR; 511 512 seq_printf(m, "RingHead : %08x\n", head); 513 seq_printf(m, "RingTail : %08x\n", tail); 514 seq_printf(m, "RingSize : %08lx\n", dev_priv->render_ring.size); 515 seq_printf(m, "Acthd : %08x\n", I915_READ(INTEL_INFO(dev)->gen >= 4 ? ACTHD_I965 : ACTHD)); 516 517 return 0; 518 } 519 520 static const char *pin_flag(int pinned) 521 { 522 if (pinned > 0) 523 return " P"; 524 else if (pinned < 0) 525 return " p"; 526 else 527 return ""; 528 } 529 530 static const char *tiling_flag(int tiling) 531 { 532 switch (tiling) { 533 default: 534 case I915_TILING_NONE: return ""; 535 case I915_TILING_X: return " X"; 536 case I915_TILING_Y: return " Y"; 537 } 538 } 539 540 static const char *dirty_flag(int dirty) 541 { 542 return dirty ? " dirty" : ""; 543 } 544 545 static const char *purgeable_flag(int purgeable) 546 { 547 return purgeable ? " purgeable" : ""; 548 } 549 550 static int i915_error_state(struct seq_file *m, void *unused) 551 { 552 struct drm_info_node *node = (struct drm_info_node *) m->private; 553 struct drm_device *dev = node->minor->dev; 554 drm_i915_private_t *dev_priv = dev->dev_private; 555 struct drm_i915_error_state *error; 556 unsigned long flags; 557 int i, page, offset, elt; 558 559 spin_lock_irqsave(&dev_priv->error_lock, flags); 560 if (!dev_priv->first_error) { 561 seq_printf(m, "no error state collected\n"); 562 goto out; 563 } 564 565 error = dev_priv->first_error; 566 567 seq_printf(m, "Time: %ld s %ld us\n", error->time.tv_sec, 568 error->time.tv_usec); 569 seq_printf(m, "PCI ID: 0x%04x\n", dev->pci_device); 570 seq_printf(m, "EIR: 0x%08x\n", error->eir); 571 seq_printf(m, " PGTBL_ER: 0x%08x\n", error->pgtbl_er); 572 seq_printf(m, " INSTPM: 0x%08x\n", error->instpm); 573 seq_printf(m, " IPEIR: 0x%08x\n", error->ipeir); 574 seq_printf(m, " IPEHR: 0x%08x\n", error->ipehr); 575 seq_printf(m, " INSTDONE: 0x%08x\n", error->instdone); 576 seq_printf(m, " ACTHD: 0x%08x\n", error->acthd); 577 if (INTEL_INFO(dev)->gen >= 4) { 578 seq_printf(m, " INSTPS: 0x%08x\n", error->instps); 579 seq_printf(m, " INSTDONE1: 0x%08x\n", error->instdone1); 580 } 581 seq_printf(m, "seqno: 0x%08x\n", error->seqno); 582 583 if (error->active_bo_count) { 584 seq_printf(m, "Buffers [%d]:\n", error->active_bo_count); 585 586 for (i = 0; i < error->active_bo_count; i++) { 587 seq_printf(m, " %08x %8zd %08x %08x %08x%s%s%s%s", 588 error->active_bo[i].gtt_offset, 589 error->active_bo[i].size, 590 error->active_bo[i].read_domains, 591 error->active_bo[i].write_domain, 592 error->active_bo[i].seqno, 593 pin_flag(error->active_bo[i].pinned), 594 tiling_flag(error->active_bo[i].tiling), 595 dirty_flag(error->active_bo[i].dirty), 596 purgeable_flag(error->active_bo[i].purgeable)); 597 598 if (error->active_bo[i].name) 599 seq_printf(m, " (name: %d)", error->active_bo[i].name); 600 if (error->active_bo[i].fence_reg != I915_FENCE_REG_NONE) 601 seq_printf(m, " (fence: %d)", error->active_bo[i].fence_reg); 602 603 seq_printf(m, "\n"); 604 } 605 } 606 607 for (i = 0; i < ARRAY_SIZE(error->batchbuffer); i++) { 608 if (error->batchbuffer[i]) { 609 struct drm_i915_error_object *obj = error->batchbuffer[i]; 610 611 seq_printf(m, "--- gtt_offset = 0x%08x\n", obj->gtt_offset); 612 offset = 0; 613 for (page = 0; page < obj->page_count; page++) { 614 for (elt = 0; elt < PAGE_SIZE/4; elt++) { 615 seq_printf(m, "%08x : %08x\n", offset, obj->pages[page][elt]); 616 offset += 4; 617 } 618 } 619 } 620 } 621 622 if (error->ringbuffer) { 623 struct drm_i915_error_object *obj = error->ringbuffer; 624 625 seq_printf(m, "--- ringbuffer = 0x%08x\n", obj->gtt_offset); 626 offset = 0; 627 for (page = 0; page < obj->page_count; page++) { 628 for (elt = 0; elt < PAGE_SIZE/4; elt++) { 629 seq_printf(m, "%08x : %08x\n", offset, obj->pages[page][elt]); 630 offset += 4; 631 } 632 } 633 } 634 635 if (error->overlay) 636 intel_overlay_print_error_state(m, error->overlay); 637 638 out: 639 spin_unlock_irqrestore(&dev_priv->error_lock, flags); 640 641 return 0; 642 } 643 644 static int i915_rstdby_delays(struct seq_file *m, void *unused) 645 { 646 struct drm_info_node *node = (struct drm_info_node *) m->private; 647 struct drm_device *dev = node->minor->dev; 648 drm_i915_private_t *dev_priv = dev->dev_private; 649 u16 crstanddelay = I915_READ16(CRSTANDVID); 650 651 seq_printf(m, "w/ctx: %d, w/o ctx: %d\n", (crstanddelay >> 8) & 0x3f, (crstanddelay & 0x3f)); 652 653 return 0; 654 } 655 656 static int i915_cur_delayinfo(struct seq_file *m, void *unused) 657 { 658 struct drm_info_node *node = (struct drm_info_node *) m->private; 659 struct drm_device *dev = node->minor->dev; 660 drm_i915_private_t *dev_priv = dev->dev_private; 661 u16 rgvswctl = I915_READ16(MEMSWCTL); 662 u16 rgvstat = I915_READ16(MEMSTAT_ILK); 663 664 seq_printf(m, "Requested P-state: %d\n", (rgvswctl >> 8) & 0xf); 665 seq_printf(m, "Requested VID: %d\n", rgvswctl & 0x3f); 666 seq_printf(m, "Current VID: %d\n", (rgvstat & MEMSTAT_VID_MASK) >> 667 MEMSTAT_VID_SHIFT); 668 seq_printf(m, "Current P-state: %d\n", 669 (rgvstat & MEMSTAT_PSTATE_MASK) >> MEMSTAT_PSTATE_SHIFT); 670 671 return 0; 672 } 673 674 static int i915_delayfreq_table(struct seq_file *m, void *unused) 675 { 676 struct drm_info_node *node = (struct drm_info_node *) m->private; 677 struct drm_device *dev = node->minor->dev; 678 drm_i915_private_t *dev_priv = dev->dev_private; 679 u32 delayfreq; 680 int i; 681 682 for (i = 0; i < 16; i++) { 683 delayfreq = I915_READ(PXVFREQ_BASE + i * 4); 684 seq_printf(m, "P%02dVIDFREQ: 0x%08x (VID: %d)\n", i, delayfreq, 685 (delayfreq & PXVFREQ_PX_MASK) >> PXVFREQ_PX_SHIFT); 686 } 687 688 return 0; 689 } 690 691 static inline int MAP_TO_MV(int map) 692 { 693 return 1250 - (map * 25); 694 } 695 696 static int i915_inttoext_table(struct seq_file *m, void *unused) 697 { 698 struct drm_info_node *node = (struct drm_info_node *) m->private; 699 struct drm_device *dev = node->minor->dev; 700 drm_i915_private_t *dev_priv = dev->dev_private; 701 u32 inttoext; 702 int i; 703 704 for (i = 1; i <= 32; i++) { 705 inttoext = I915_READ(INTTOEXT_BASE_ILK + i * 4); 706 seq_printf(m, "INTTOEXT%02d: 0x%08x\n", i, inttoext); 707 } 708 709 return 0; 710 } 711 712 static int i915_drpc_info(struct seq_file *m, void *unused) 713 { 714 struct drm_info_node *node = (struct drm_info_node *) m->private; 715 struct drm_device *dev = node->minor->dev; 716 drm_i915_private_t *dev_priv = dev->dev_private; 717 u32 rgvmodectl = I915_READ(MEMMODECTL); 718 u32 rstdbyctl = I915_READ(MCHBAR_RENDER_STANDBY); 719 u16 crstandvid = I915_READ16(CRSTANDVID); 720 721 seq_printf(m, "HD boost: %s\n", (rgvmodectl & MEMMODE_BOOST_EN) ? 722 "yes" : "no"); 723 seq_printf(m, "Boost freq: %d\n", 724 (rgvmodectl & MEMMODE_BOOST_FREQ_MASK) >> 725 MEMMODE_BOOST_FREQ_SHIFT); 726 seq_printf(m, "HW control enabled: %s\n", 727 rgvmodectl & MEMMODE_HWIDLE_EN ? "yes" : "no"); 728 seq_printf(m, "SW control enabled: %s\n", 729 rgvmodectl & MEMMODE_SWMODE_EN ? "yes" : "no"); 730 seq_printf(m, "Gated voltage change: %s\n", 731 rgvmodectl & MEMMODE_RCLK_GATE ? "yes" : "no"); 732 seq_printf(m, "Starting frequency: P%d\n", 733 (rgvmodectl & MEMMODE_FSTART_MASK) >> MEMMODE_FSTART_SHIFT); 734 seq_printf(m, "Max P-state: P%d\n", 735 (rgvmodectl & MEMMODE_FMAX_MASK) >> MEMMODE_FMAX_SHIFT); 736 seq_printf(m, "Min P-state: P%d\n", (rgvmodectl & MEMMODE_FMIN_MASK)); 737 seq_printf(m, "RS1 VID: %d\n", (crstandvid & 0x3f)); 738 seq_printf(m, "RS2 VID: %d\n", ((crstandvid >> 8) & 0x3f)); 739 seq_printf(m, "Render standby enabled: %s\n", 740 (rstdbyctl & RCX_SW_EXIT) ? "no" : "yes"); 741 742 return 0; 743 } 744 745 static int i915_fbc_status(struct seq_file *m, void *unused) 746 { 747 struct drm_info_node *node = (struct drm_info_node *) m->private; 748 struct drm_device *dev = node->minor->dev; 749 drm_i915_private_t *dev_priv = dev->dev_private; 750 751 if (!I915_HAS_FBC(dev)) { 752 seq_printf(m, "FBC unsupported on this chipset\n"); 753 return 0; 754 } 755 756 if (intel_fbc_enabled(dev)) { 757 seq_printf(m, "FBC enabled\n"); 758 } else { 759 seq_printf(m, "FBC disabled: "); 760 switch (dev_priv->no_fbc_reason) { 761 case FBC_NO_OUTPUT: 762 seq_printf(m, "no outputs"); 763 break; 764 case FBC_STOLEN_TOO_SMALL: 765 seq_printf(m, "not enough stolen memory"); 766 break; 767 case FBC_UNSUPPORTED_MODE: 768 seq_printf(m, "mode not supported"); 769 break; 770 case FBC_MODE_TOO_LARGE: 771 seq_printf(m, "mode too large"); 772 break; 773 case FBC_BAD_PLANE: 774 seq_printf(m, "FBC unsupported on plane"); 775 break; 776 case FBC_NOT_TILED: 777 seq_printf(m, "scanout buffer not tiled"); 778 break; 779 case FBC_MULTIPLE_PIPES: 780 seq_printf(m, "multiple pipes are enabled"); 781 break; 782 default: 783 seq_printf(m, "unknown reason"); 784 } 785 seq_printf(m, "\n"); 786 } 787 return 0; 788 } 789 790 static int i915_sr_status(struct seq_file *m, void *unused) 791 { 792 struct drm_info_node *node = (struct drm_info_node *) m->private; 793 struct drm_device *dev = node->minor->dev; 794 drm_i915_private_t *dev_priv = dev->dev_private; 795 bool sr_enabled = false; 796 797 if (IS_GEN5(dev)) 798 sr_enabled = I915_READ(WM1_LP_ILK) & WM1_LP_SR_EN; 799 else if (IS_CRESTLINE(dev) || IS_I945G(dev) || IS_I945GM(dev)) 800 sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN; 801 else if (IS_I915GM(dev)) 802 sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN; 803 else if (IS_PINEVIEW(dev)) 804 sr_enabled = I915_READ(DSPFW3) & PINEVIEW_SELF_REFRESH_EN; 805 806 seq_printf(m, "self-refresh: %s\n", 807 sr_enabled ? "enabled" : "disabled"); 808 809 return 0; 810 } 811 812 static int i915_emon_status(struct seq_file *m, void *unused) 813 { 814 struct drm_info_node *node = (struct drm_info_node *) m->private; 815 struct drm_device *dev = node->minor->dev; 816 drm_i915_private_t *dev_priv = dev->dev_private; 817 unsigned long temp, chipset, gfx; 818 int ret; 819 820 ret = mutex_lock_interruptible(&dev->struct_mutex); 821 if (ret) 822 return ret; 823 824 temp = i915_mch_val(dev_priv); 825 chipset = i915_chipset_val(dev_priv); 826 gfx = i915_gfx_val(dev_priv); 827 mutex_unlock(&dev->struct_mutex); 828 829 seq_printf(m, "GMCH temp: %ld\n", temp); 830 seq_printf(m, "Chipset power: %ld\n", chipset); 831 seq_printf(m, "GFX power: %ld\n", gfx); 832 seq_printf(m, "Total power: %ld\n", chipset + gfx); 833 834 return 0; 835 } 836 837 static int i915_gfxec(struct seq_file *m, void *unused) 838 { 839 struct drm_info_node *node = (struct drm_info_node *) m->private; 840 struct drm_device *dev = node->minor->dev; 841 drm_i915_private_t *dev_priv = dev->dev_private; 842 843 seq_printf(m, "GFXEC: %ld\n", (unsigned long)I915_READ(0x112f4)); 844 845 return 0; 846 } 847 848 static int i915_opregion(struct seq_file *m, void *unused) 849 { 850 struct drm_info_node *node = (struct drm_info_node *) m->private; 851 struct drm_device *dev = node->minor->dev; 852 drm_i915_private_t *dev_priv = dev->dev_private; 853 struct intel_opregion *opregion = &dev_priv->opregion; 854 int ret; 855 856 ret = mutex_lock_interruptible(&dev->struct_mutex); 857 if (ret) 858 return ret; 859 860 if (opregion->header) 861 seq_write(m, opregion->header, OPREGION_SIZE); 862 863 mutex_unlock(&dev->struct_mutex); 864 865 return 0; 866 } 867 868 static int i915_gem_framebuffer_info(struct seq_file *m, void *data) 869 { 870 struct drm_info_node *node = (struct drm_info_node *) m->private; 871 struct drm_device *dev = node->minor->dev; 872 drm_i915_private_t *dev_priv = dev->dev_private; 873 struct intel_fbdev *ifbdev; 874 struct intel_framebuffer *fb; 875 int ret; 876 877 ret = mutex_lock_interruptible(&dev->mode_config.mutex); 878 if (ret) 879 return ret; 880 881 ifbdev = dev_priv->fbdev; 882 fb = to_intel_framebuffer(ifbdev->helper.fb); 883 884 seq_printf(m, "fbcon size: %d x %d, depth %d, %d bpp, obj ", 885 fb->base.width, 886 fb->base.height, 887 fb->base.depth, 888 fb->base.bits_per_pixel); 889 describe_obj(m, to_intel_bo(fb->obj)); 890 seq_printf(m, "\n"); 891 892 list_for_each_entry(fb, &dev->mode_config.fb_list, base.head) { 893 if (&fb->base == ifbdev->helper.fb) 894 continue; 895 896 seq_printf(m, "user size: %d x %d, depth %d, %d bpp, obj ", 897 fb->base.width, 898 fb->base.height, 899 fb->base.depth, 900 fb->base.bits_per_pixel); 901 describe_obj(m, to_intel_bo(fb->obj)); 902 seq_printf(m, "\n"); 903 } 904 905 mutex_unlock(&dev->mode_config.mutex); 906 907 return 0; 908 } 909 910 static int 911 i915_wedged_open(struct inode *inode, 912 struct file *filp) 913 { 914 filp->private_data = inode->i_private; 915 return 0; 916 } 917 918 static ssize_t 919 i915_wedged_read(struct file *filp, 920 char __user *ubuf, 921 size_t max, 922 loff_t *ppos) 923 { 924 struct drm_device *dev = filp->private_data; 925 drm_i915_private_t *dev_priv = dev->dev_private; 926 char buf[80]; 927 int len; 928 929 len = snprintf(buf, sizeof (buf), 930 "wedged : %d\n", 931 atomic_read(&dev_priv->mm.wedged)); 932 933 if (len > sizeof (buf)) 934 len = sizeof (buf); 935 936 return simple_read_from_buffer(ubuf, max, ppos, buf, len); 937 } 938 939 static ssize_t 940 i915_wedged_write(struct file *filp, 941 const char __user *ubuf, 942 size_t cnt, 943 loff_t *ppos) 944 { 945 struct drm_device *dev = filp->private_data; 946 drm_i915_private_t *dev_priv = dev->dev_private; 947 char buf[20]; 948 int val = 1; 949 950 if (cnt > 0) { 951 if (cnt > sizeof (buf) - 1) 952 return -EINVAL; 953 954 if (copy_from_user(buf, ubuf, cnt)) 955 return -EFAULT; 956 buf[cnt] = 0; 957 958 val = simple_strtoul(buf, NULL, 0); 959 } 960 961 DRM_INFO("Manually setting wedged to %d\n", val); 962 963 atomic_set(&dev_priv->mm.wedged, val); 964 if (val) { 965 wake_up_all(&dev_priv->irq_queue); 966 queue_work(dev_priv->wq, &dev_priv->error_work); 967 } 968 969 return cnt; 970 } 971 972 static const struct file_operations i915_wedged_fops = { 973 .owner = THIS_MODULE, 974 .open = i915_wedged_open, 975 .read = i915_wedged_read, 976 .write = i915_wedged_write, 977 .llseek = default_llseek, 978 }; 979 980 /* As the drm_debugfs_init() routines are called before dev->dev_private is 981 * allocated we need to hook into the minor for release. */ 982 static int 983 drm_add_fake_info_node(struct drm_minor *minor, 984 struct dentry *ent, 985 const void *key) 986 { 987 struct drm_info_node *node; 988 989 node = kmalloc(sizeof(struct drm_info_node), GFP_KERNEL); 990 if (node == NULL) { 991 debugfs_remove(ent); 992 return -ENOMEM; 993 } 994 995 node->minor = minor; 996 node->dent = ent; 997 node->info_ent = (void *) key; 998 list_add(&node->list, &minor->debugfs_nodes.list); 999 1000 return 0; 1001 } 1002 1003 static int i915_wedged_create(struct dentry *root, struct drm_minor *minor) 1004 { 1005 struct drm_device *dev = minor->dev; 1006 struct dentry *ent; 1007 1008 ent = debugfs_create_file("i915_wedged", 1009 S_IRUGO | S_IWUSR, 1010 root, dev, 1011 &i915_wedged_fops); 1012 if (IS_ERR(ent)) 1013 return PTR_ERR(ent); 1014 1015 return drm_add_fake_info_node(minor, ent, &i915_wedged_fops); 1016 } 1017 1018 static struct drm_info_list i915_debugfs_list[] = { 1019 {"i915_capabilities", i915_capabilities, 0, 0}, 1020 {"i915_gem_objects", i915_gem_object_info, 0}, 1021 {"i915_gem_active", i915_gem_object_list_info, 0, (void *) ACTIVE_LIST}, 1022 {"i915_gem_flushing", i915_gem_object_list_info, 0, (void *) FLUSHING_LIST}, 1023 {"i915_gem_inactive", i915_gem_object_list_info, 0, (void *) INACTIVE_LIST}, 1024 {"i915_gem_pinned", i915_gem_object_list_info, 0, (void *) PINNED_LIST}, 1025 {"i915_gem_deferred_free", i915_gem_object_list_info, 0, (void *) DEFERRED_FREE_LIST}, 1026 {"i915_gem_pageflip", i915_gem_pageflip_info, 0}, 1027 {"i915_gem_request", i915_gem_request_info, 0}, 1028 {"i915_gem_seqno", i915_gem_seqno_info, 0}, 1029 {"i915_gem_fence_regs", i915_gem_fence_regs_info, 0}, 1030 {"i915_gem_interrupt", i915_interrupt_info, 0}, 1031 {"i915_gem_hws", i915_hws_info, 0}, 1032 {"i915_ringbuffer_data", i915_ringbuffer_data, 0}, 1033 {"i915_ringbuffer_info", i915_ringbuffer_info, 0}, 1034 {"i915_batchbuffers", i915_batchbuffer_info, 0}, 1035 {"i915_error_state", i915_error_state, 0}, 1036 {"i915_rstdby_delays", i915_rstdby_delays, 0}, 1037 {"i915_cur_delayinfo", i915_cur_delayinfo, 0}, 1038 {"i915_delayfreq_table", i915_delayfreq_table, 0}, 1039 {"i915_inttoext_table", i915_inttoext_table, 0}, 1040 {"i915_drpc_info", i915_drpc_info, 0}, 1041 {"i915_emon_status", i915_emon_status, 0}, 1042 {"i915_gfxec", i915_gfxec, 0}, 1043 {"i915_fbc_status", i915_fbc_status, 0}, 1044 {"i915_sr_status", i915_sr_status, 0}, 1045 {"i915_opregion", i915_opregion, 0}, 1046 {"i915_gem_framebuffer", i915_gem_framebuffer_info, 0}, 1047 }; 1048 #define I915_DEBUGFS_ENTRIES ARRAY_SIZE(i915_debugfs_list) 1049 1050 int i915_debugfs_init(struct drm_minor *minor) 1051 { 1052 int ret; 1053 1054 ret = i915_wedged_create(minor->debugfs_root, minor); 1055 if (ret) 1056 return ret; 1057 1058 return drm_debugfs_create_files(i915_debugfs_list, 1059 I915_DEBUGFS_ENTRIES, 1060 minor->debugfs_root, minor); 1061 } 1062 1063 void i915_debugfs_cleanup(struct drm_minor *minor) 1064 { 1065 drm_debugfs_remove_files(i915_debugfs_list, 1066 I915_DEBUGFS_ENTRIES, minor); 1067 drm_debugfs_remove_files((struct drm_info_list *) &i915_wedged_fops, 1068 1, minor); 1069 } 1070 1071 #endif /* CONFIG_DEBUG_FS */ 1072